HELP PHYSICS HOMEWORK!?

Jenn

New member
A motorist is traveling at a constant speed of 12 m/s when he sees a deer in the road 39 m ahead.
If the maximum negative acceleration of the vehicle is -7 m/s^2, what is the maximum reaction time ( delta t) of the motorist that will allow him to avois hitting the deer? answer in units of s.


Part2:
If his reaction is 2.58176s how fast will he be traveling when he reaches the deer? answer in units of m/s
 
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